Optimizing and improving the machining technology of large size and high-precision spiral bevel gears

(1) Increase the research on manufacturing large diameter spiral bevel gears

It is necessary to introduce the advanced spiral tooth machining theory and explore and improve the forced relationship between the wheel embryo diameter and the cutter head diameter in the traditional spiral bevel gear machining. Accelerate the research and development progress of the high rigidity spiral bevel gear machine tool, accelerate the research and development of the core technology of the machine tool with independent intellectual property rights, explore the comprehensive optimization scheme to improve the rigidity and accuracy of the bevel gear machine tool, and improve the machining accuracy of the large diameter cutter head developed tooth surface. Focus on solving the problems of low processing efficiency, long production cycle and high processing cost in the processing of large specification and high-precision spiral bevel gears, and commit to forming machine tool theories and manufacturing methods with Chinese independent intellectual property rights in the processing of large specification and high-precision spiral bevel gears, making positive contributions to manufacturing in China and providing technical support for national heavy industry production.

(2) Exploring NC enveloping tooth surface machining technology of small diameter tool

Based on the study of foreign advanced technology, the processing technology of large specification and high precision spiral bevel gears should speed up the research and development and application of the NC enveloping tooth surface processing technology of small diameter cutters, solve the problem of the correlation between the cutter and the gear diameter in the traditional processing methods, and reduce the requirements for the machining rigidity of the machine tool by using the NC processing technology of small diameter cutters in view of the factors that the cutter size is affected by the tooth slot size, Improve the processing efficiency of the enveloping tooth surface, especially improve the durability of the tool, and use the tool of the same specification to process multiple tooth surfaces of the large gear. It is necessary to deeply study the end milling technology of the tooth surface, innovate the interference processing method for the problems that affect the accuracy in the processing, and further meet the use needs of large specifications and high-precision spiral bevel gears in many important fields such as national petrochemical industry, automobile manufacturing, precision machine tools and so on.

(3) Improve the quality and accuracy of arc surface contour processing technology

Aiming at the most widely used circular arc profile machining technology, we will vigorously explore to improve the machining diameter of the gear, realize automatic adjustment and open design of the machining process, and enhance the application effect of the machining technology. In the circular arc profile machining technology, the gear has three shafts, each of which is in the movement mode of parallel lever sliding. Therefore, after the gear of the arc wheel is divided into the driving gear shaft and the auxiliary gear shaft, the automatic balancing device of the rotor can be set through the spindle rotation design to solve the position fixing problem in the continuous operation of the machine tool and improve the comprehensive utilization efficiency of the machine tool. In the installation and design of auxiliary shaft, the installation node can be taken as the center position, the coordinate system can be set at the position where sliding is easy to occur, and the friction wheel can be installed on the node, so as to reduce the problem of parts damage during operation and keep the gear in balanced operation. The automatic control technology is used to independently compile the manufacturing program to improve the processing accuracy and the use efficiency of the driver.

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